Dyfyniad APA

LAHAYES TIM. (1979). HOW TO WIN OVER DEPRESSION. BANTAM BOOKS.

Dyfyniad Arddull Chicago

LAHAYES TIM. HOW TO WIN OVER DEPRESSION. NEW YORK: BANTAM BOOKS, 1979.

Dyfyniad MLA

LAHAYES TIM. HOW TO WIN OVER DEPRESSION. BANTAM BOOKS, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.